CN104676349B - A kind of side-emitting LED module and LED - Google Patents

A kind of side-emitting LED module and LED Download PDF

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Publication number
CN104676349B
CN104676349B CN201310604832.XA CN201310604832A CN104676349B CN 104676349 B CN104676349 B CN 104676349B CN 201310604832 A CN201310604832 A CN 201310604832A CN 104676349 B CN104676349 B CN 104676349B
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CN
China
Prior art keywords
led
shaped lamp
light
lamp door
prism
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Active
Application number
CN201310604832.XA
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Chinese (zh)
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CN104676349A (en
Inventor
宋新新
孙亚轩
吴波
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BYD Co Ltd
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BYD Co Ltd
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Priority to CN201310604832.XA priority Critical patent/CN104676349B/en
Priority to PCT/CN2014/092205 priority patent/WO2015078361A1/en
Publication of CN104676349A publication Critical patent/CN104676349A/en
Application granted granted Critical
Publication of CN104676349B publication Critical patent/CN104676349B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/008—Combination of two or more successive refractors along an optical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/12—Combinations of only three kinds of elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • G02B5/045—Prism arrays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Led Device Packages (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention provides a kind of side-emitting LED module, the module includes：Reflecting plate, U-shaped lamp door, LED light source, prism, brightening piece and diffuser plate；The U-shaped lamp door be located at the reflecting plate a side, and the type lamp door opening just to reflecting plate side；The LED light source is arranged in the U-shaped lamp door and is located at the bottom of U-shaped lamp door, and the LED light source at least includes red-light LED and white light LEDs；The prism is arranged between the U-shaped lamp door and the reflecting plate, and the prism seals the first cavity to form closing with the U-shaped lamp door；The brightening piece is located above reflecting plate, and the diffuser plate is located above brightening piece, and the brightening piece, the reflecting plate seal the second cavity to form closing with the prism.Present invention also offers a kind of LED lamp.The present invention realizes high color rendering index (CRI) requirement using lower cost mode, while making light fixture lightweight and improving optical utilization efficiency.

Description

A kind of side-emitting LED module and LED
Technical field
The invention belongs to LED field, more particularly to a kind of side-emitting LED module and LED.
Background technology
Existing LED lamp, the white light LEDs of YAG fluorescent powder is excited more than its light emitting module, although this LED using blue light Manufacture craft is ripe, and low cost and light efficiency are higher, but colour rendering index is unsatisfactory, it is impossible to meet the demand of high-quality illumination.
Existing technology uses white light LEDs, red-light LED and green light LED to mix arrangement, or white light according to a certain percentage LED and red-light LED mix the light emitting module that arrangement constitutes LED according to a certain percentage, are applied to straight-down negative light fixture, and advantage is can Significantly to improve colour rendering index, have the disadvantage that the thickness of light fixture is thicker, not attractive in appearance enough, the mode of straight-down negative is easier to produce Raw dazzle, light is not soft enough, and these problems increasingly focus on light source comfortableness in present this, and good appearance is lightening The LED product epoch, the problem as urgent need to resolve.
Chinese patent CN201198966Y discloses a kind of LED lamp, including lamp housing and the LED moulds in lamp housing Group, its LED module contains three kinds of white light LEDs, red-light LED and green light LED, the light of the white light LEDs, red-light LED and green light LED Strength ratio is 7-8：1.4-2：1.The LED lamp colour rendering index is obviously improved, low colour temperature section compared with like product light efficiency compared with It is high.But it easily produces dazzle, and light is not soft enough and thickness of its light fixture is thicker, not attractive in appearance enough.
The content of the invention
The present invention is the existing technical problem that LED lamp light source comfortableness is poor, light fixture thickness is thicker of solution, there is provided A kind of light source is comfortable, the side-emitting LED module of the thinner thickness of light fixture and the LED containing the module.
The invention provides a kind of side-emitting LED module, the module includes：Reflecting plate, U-shaped lamp door, LED light source, rib Mirror, brightening piece and diffuser plate；The U-shaped lamp door be located at the reflecting plate a side, and the U-shaped lamp door opening just to anti- Penetrate plate side；The LED light source is arranged in the U-shaped lamp door and is located at the bottom of U-shaped lamp door, and the LED light source is at least Including red-light LED and white light LEDs；The prism is arranged between the U-shaped lamp door and the reflecting plate, and the prism and institute State U-shaped lamp door and seal the first cavity to form closing；The brightening piece is located above reflecting plate, and the diffuser plate is located at and adds lustre to Above piece, and the brightening piece, the reflecting plate seal the second cavity to form closing with the prism.
Preferably, the U-shaped lamp door includes a vertical bottom placed, upward from the bottom upper extreme point of the vertical placement The second side that the first side of extension and the bottom lower extreme point from the vertical placement are extended downwardly, the first side and Dual side-edge forms the first angle and the second angle with horizontal direction respectively, and first angle is 10-60 °, second angle It is 10-60 °.
Preferably, the prism include incidence surface and relative exiting surface, the incidence surface be plane, the exiting surface by Two inclined-plane compositions, described two inclined-planes are 80-140 ° relative to the angle of incidence surface side.
Preferably, described two inclined-planes are 110-120 ° relative to the angle of incidence surface side.
Preferably, white light LEDs and the number ratio of red-light LED are 1-10 in the LED light source：1.
Preferably, white light LEDs and the number ratio of red-light LED are 2-4 in the LED light source：1.
Preferably, the red-light LED is arranged at least one strip source with white light LEDs.
Preferably, the white light LEDs and red-light LED are spaced.
Preferably, the spacing of LED arrangement is P, and the distance between the LED light source and described prism incidence surface are L, And the relation of the P and L is 0.3≤L/P≤10.
Preferably, the brightening piece is the orthogonal brightening piece of two panels.
Preferably, the reflecting plate upper surface is provided with projection, described raised for wavy or zigzag.
Present invention also offers a kind of LED lamp, it is characterised in that the light fixture includes lamp housing and in lamp housing LED modules；Wherein, the LED modules are side-emitting LED module of the present invention.
The luminous LED modules in side of the invention, LED modules are located at a side of reflecting plate, reduce the thickness of LED modules Degree, light fixture U-shaped lamp inframe is placed on using the LED light source being made up of red white dichromatism, comprising supplement in LED light source of the invention Red spectrum, therefore colour rendering index is higher.Light sends from side simultaneously, by by prism, reflecting plate and adding lustre to after mixed light From positive exiting surface outgoing after sheet devices, then it is atomized through diffuser plate, makes light soft, uniformly, dazzle will not be produced.The present invention with Prior art realizes high color rendering index (CRI) requirement compared to using lower cost mode, while making light fixture lightweight and improving Optical utilization efficiency.
Brief description of the drawings
Fig. 1 is side-emitting LED modular structure schematic diagram of the invention；
Fig. 2 is the structural representation of the U-shaped lamp door of one embodiment of the invention；
Fig. 3 is the prism structure schematic diagram of one embodiment of the invention；
Fig. 4 is the strip source arrangement mode schematic diagram of one embodiment of the invention；
Fig. 5 is the reflection board structure schematic diagram of one embodiment of the invention；
Fig. 6 is the reflection board structure schematic diagram of one embodiment of the invention.
Specific embodiment
In order that technical problem solved by the invention, technical scheme and beneficial effect become more apparent, below in conjunction with Embodiment, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to explain The present invention, is not intended to limit the present invention.
In the description of the invention, it is to be understood that term " side ", " interior ", " on ", D score, " bottom ", " interior ", The orientation or position relationship of the instruction such as " outward " are, based on orientation shown in the drawings or position relationship, to be for only for ease of description this hair Bright and simplified description, must be with specific orientation, with specific orientation rather than the device or element for indicating or imply meaning Construction and operation, therefore be not considered as limiting the invention.Additionally, term " first ", " second " are only used for describing purpose, And it is not intended that indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, limit There is " first ", one or more this feature can be expressed or be implicitly included to the feature of " second ".
Side-emitting LED module according to embodiments of the present invention is described with reference to Fig. 1-6.As shown in figure 1, according to the present invention The side-emitting LED module of embodiment includes LED light source 1, U-shaped lamp door 2, prism 3, reflecting plate 4, brightening piece 5 and diffuser plate 6.
U-shaped lamp door 2 be located at reflecting plate 4 a side, and U-shaped lamp door 2 opening 21 just to the side of reflecting plate 4；LED light source 1 is arranged in U-shaped lamp door 2 and positioned at the bottom of U-shaped lamp door, and LED light source at least includes red-light LED and white light LEDs；Prism 3 It is arranged between U-shaped lamp door 2 and reflecting plate 4, and prism 3 forms the first cavity of closing with the sealing of U-shaped lamp door 2；Brightening piece 5 Above reflecting plate 4, and brightening piece 5, reflecting plate 4 form the second cavity of closing, the top of brightening piece 5 with the sealing of prism 3 It is provided with diffuser plate 6.
The present invention is placed in U-shaped lamp frame 2 using the LED light source 1 being made up of red white dichromatism, and light is passed through after being sent from light source U-shaped lamp door 2 enters after prism 3 or light send from light source after reflecting and is directly entered prism, then by after refraction by prism, portion Light splitter by add lustre plate after baffle reflection by projecting.Comprising the red spectrum of supplement in LED light source of the invention, thus it is aobvious Colour index is higher, and light after mixed light by, by prism, from positive exiting surface outgoing after reflecting plate and the sheet devices that add lustre to, then passing through Diffuser plate is atomized, and makes light soft, uniformly.The present invention is realized high aobvious compared with prior art using lower cost mode Colour index requirement, while making light fixture lightweight and improving optical utilization efficiency.
As shown in Fig. 2 in one embodiment of this invention, U-shaped lamp door includes a vertical bottom 22 placed, is erected from described What the first side 23 upwardly extended to the bottom upper extreme point placed and the bottom lower extreme point from the vertical placement were extended downwardly Second side 24, the first side 23 and second side 24 form the first angle a with horizontal direction respectively1With the second angle a2, The first angle a1It is 10-60 °, the second angle a2It is 10-60 °.a1And a2Can be the same or different.By U-shaped lamp Frame is arranged to so be conducive to controlling the path of high angle scattered light, high angle scattered light will be reflected by U-shaped lamp door as far as possible Again by refraction by prism to reflecting plate.
As shown in figure 3, in one embodiment of this invention, prism 3 includes incidence surface 31 and relative exiting surface 32, enters light Face 31 is plane, and exiting surface is made up of two inclined-planes 321, and two inclined-planes are 80-140 ° relative to the angle b of incidence surface side. Further, b is 110-120 °.If b is too big, the high angle scattered light that LED light source sends easily directly from both sides outgoing, is caused out Light is uneven, and the scope of b of the invention can be good at controlling the direction of light, be mapped to the light from prism exiting surface out On reflecting plate, by after baffle reflection again by add lustre plate outgoing.But because different material refractive indexes is different, so b Size can be varied from according to the difference of prism material, the present inventor can be carried out according to the material of prism to b Selection.
In one embodiment of this invention, white light LEDs and the number ratio of red-light LED are 1-10 in LED light source：1.Further Preferably 2-4：1.The ratio of white light is higher, and light efficiency is higher, and the increase of feux rouges ratio can improve colour rendering index, but light efficiency can drop Degree, colour temperature also can warm colour, red white ratio 2-4 partially：1 or so colour rendering index, light efficiency and colour temperature numerical value are all more satisfactory.White light LEDs Nitride can be added for blue light excites the white light LEDs of YAG fluorescent powder or is mixed with during a little blue light excites YAG fluorescent powder The white light LEDs of feux rouges.
As shown in figure 4, red-light LED（R）With white light LEDs（W）It is arranged in strip source.And white light LEDs and red-light LED interval Arrangement.Red-light LED（R）With white light LEDs（W）Being arranged in strip source is conducive to the light source to carry out mixed light, white light LEDs and red-light LED It is spaced and further improves light mixing effect.The specific number of light source can determine as needed, it is contemplated that quantity of light source and LED The size of module, can set a plurality of strip source, as long as ensureing that strip source carries out branch i.e. centered on the center of prism 3 Can.
As shown in Figure 1 and Figure 4, in one embodiment of this invention, the spacing that LED is arranged is for P states LED light source with the rib The distance between mirror incidence surface is L, and the relation of the P and L is 0.3≤L/P≤10.If differing too many between P and L, meeting Easily produce dark space.The ratio of L and P is offline（L/P=0.3）It is to be determined by situations below, the LED of adjacent different colours sends out The light beam for going out at least is contacted with each other in optical coupling fringe region, and ratio is reached the standard grade（L/P=10）It is by the fact that decision, lacks During this upper limit, big unrealistic of the marginate width of lamp, it is impossible to realize.
As shown in figure 1, in one embodiment of this invention, brightening piece is the orthogonal brightening piece of two panels.The orthogonal increasing of two panels The brightness of light can be improved 100% by mating plate.
As it can be seen in figures 5 and 6, in one embodiment of this invention, reflecting plate upper surface is provided with projection, projection is wavy Or zigzag.Wavy or jagged reflecting plate is more beneficial for the reflection of light.
Light is carried out in first cavity of the closing that the light that LED modules send is formed in prism with U-shaped lamp door first to mix Close, LED dispersion angles are usually 120 degree, and light is by after refraction by prism, most light are projected with quasi-parallel light, are subtracted significantly Small former dispersion angle, enters into the second cavity, and due to the sealed environment that brightening piece and reflecting plate are formed, light is in the second chamber It is totally reflected in body, is sufficiently mixed, when light runs into the raised shape of reflector plate, total reflection is destroyed, and light is from just To injection.
LED light source is placed on side in the present invention, and light is by the first cavity, and the second cavity is sufficiently mixed, convex by band After playing the reflector plate of shape, project upwards, compared with the structure of straight-down negative, the thickness of the light fixture for greatly reducing, because light fixture goes out The light penetrated is not directly to be projected by LED exiting surfaces, so light source is than milder, comfortably.Compared with side entering type fitting structure phase Than, the design of light guide plate is eliminated, the cost of light fixture, weight are significantly reduced, while the color developing of light fixture is greatly improved.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office What combined in an appropriate manner in one or more embodiments or example.Additionally, those skilled in the art can say this Different embodiments or example described in bright book are engaged and combined.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.

Claims (10)

1. a kind of side-emitting LED module, it is characterised in that the module includes：Reflecting plate, U-shaped lamp door, LED light source, prism, Brightening piece and diffuser plate；The U-shaped lamp door be located at the reflecting plate a side, and the U-shaped lamp door opening just to reflection Plate side；The LED light source is arranged in the U-shaped lamp door and is located at the bottom of U-shaped lamp door, and the LED light source is at least wrapped Include red-light LED and white light LEDs；The prism is arranged between the U-shaped lamp door and the reflecting plate, and the prism with it is described U-shaped lamp door seals the first cavity to form closing；The brightening piece is located above reflecting plate, and the diffuser plate is located at brightening piece Above, and the brightening piece, the reflecting plate seal the second cavity to form closing with the prism；
The prism includes incidence surface and relative exiting surface, and the incidence surface is plane, and the exiting surface is by two inclined-plane groups Into relative to incidence surface side, the size of the angle on described two inclined-planes is 80-140 °；
The reflecting plate upper surface is provided with projection, described raised for wavy or zigzag.
2. side-emitting LED module according to claim 1, it is characterised in that the U-shaped lamp door includes that vertical places First side and the bottom lower extreme point from the vertical placement that bottom, the bottom upper extreme point from the vertical placement are upwardly extended The second side for extending downwardly, the first side and second side form the first angle and the second folder with horizontal direction respectively Angle, first angle is 10-60 °, and second angle is 10-60 °.
3. side-emitting LED module according to claim 1, it is characterised in that relative to incidence surface side, it is described two tiltedly The size of the angle in face is 110-120 °.
4. side-emitting LED module according to claim 1, it is characterised in that white light LEDs and feux rouges in the LED light source The number ratio of LED is 1:1 to 10:1.
5. side-emitting LED module according to claim 4, it is characterised in that white light LEDs and feux rouges in the LED light source The number ratio of LED is 2:1 to 4:1.
6. side-emitting LED module according to claim 5, it is characterised in that the red-light LED is arranged in white light LEDs At least one strip source.
7. side-emitting LED module according to claim 6, it is characterised in that the white light LEDs and red-light LED interval row Row.
8. side-emitting LED module according to claim 7, it is characterised in that the spacing of the LED arrangements is P, described The distance between LED light source and described prism incidence surface are L, and the relation of the P and L is 0.3≤L/P≤10.
9. side-emitting LED module according to claim 1, it is characterised in that the brightening piece adds lustre to for two panels is orthogonal Piece.
10. a kind of LED lamp, it is characterised in that the light fixture includes lamp housing and the LED modules in lamp housing；Wherein, it is described LED modules are the side-emitting LED module described in claim 1-9 any one.
CN201310604832.XA 2013-11-26 2013-11-26 A kind of side-emitting LED module and LED Active CN104676349B (en)

Priority Applications (2)

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CN201310604832.XA CN104676349B (en) 2013-11-26 2013-11-26 A kind of side-emitting LED module and LED
PCT/CN2014/092205 WO2015078361A1 (en) 2013-11-26 2014-11-25 Cross-reference to related application

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310604832.XA CN104676349B (en) 2013-11-26 2013-11-26 A kind of side-emitting LED module and LED

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CN104676349B true CN104676349B (en) 2017-05-31

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1345406A (en) * 1999-03-30 2002-04-17 韦斯特电气株式会社 Illuminator and liquid crystal display comprising illuminator
CN101145593A (en) * 2006-09-14 2008-03-19 鸿富锦精密工业（深圳）有限公司 Light emitting diode and its manufacturing method
CN102644889A (en) * 2012-04-01 2012-08-22 深圳市华星光电技术有限公司 Backlight module

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